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BOSTON MARATHON 2023

Emily Reynolds

Bib: 16096•F

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0:00
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Division (F18-39)
#0 / 4884
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:00
Rank: #11681
Start → 5K
24:00 | 7:43/mi
10K· 6.21 mi
47:06
Rank: #10746 (+935)
5K → 10K
23:06 | 7:26/mi
15K· 9.32 mi
1:10:28
Rank: #10588 (+158)
10K → 15K
23:22 | 7:31/mi
20K· 12.43 mi
1:33:48
Rank: #10258 (+330)
15K → 20K
23:20 | 7:31/mi
Half· 13.11 mi
1:38:49
Rank: #10177 (+81)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:57:00
Rank: #9903 (+274)
Half → 25K
18:11 | 7:30/mi
30K· 18.64 mi
2:20:35
Rank: #9508 (+395)
25K → 30K
23:35 | 7:35/mi
20M
2:30:54
Rank: #9317 (+191)
30K → 20M
10:19 | 7:36/mi
21M
2:38:57
Rank: #9179 (+138)
20M → 21M
8:03 | 8:03/mi
35K· 21.75 mi
2:44:29
Rank: #9107 (+72)
21M → 35K
5:32 | 7:24/mi
23M
2:54:05
Rank: #8990 (+117)
35K → 23M
9:36 | 7:40/mi
24M
3:01:31
Rank: #8877 (+113)
23M → 24M
7:26 | 7:26/mi
40K· 24.85 mi
3:07:54
Rank: #8775 (+102)
24M → 40K
6:23 | 7:28/mi
25.2M
3:10:40
Rank: #8718 (+57)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:18:00
Rank: #8612 (+106)
25.2M → Finish
7:20 | 7:12/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:49
Pace7:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:11
Pace7:34 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2124:007:4324:00
7:43
-
10K
6.21 mi11:37:2747:067:3523:06
7:26
-0:17
15K
9.32 mi12:00:491:10:287:3423:22
7:31
+0:05
20K
12.43 mi12:24:091:33:487:3323:20
7:31
0:00
Half
13.11 mi12:29:101:38:497:325:01
7:21
-0:10
25K
15.53 mi12:47:211:57:007:3218:11
7:30
+0:09
30K
18.64 mi13:10:562:20:357:3223:35
7:35
+0:05
20M
20.00 mi13:21:152:30:547:3310:19
7:36
+0:01
21M
21.00 mi13:29:182:38:577:348:03
8:03
+0:27
35K
21.75 mi13:34:502:44:297:345:32
7:24
-0:39
23M
23.00 mi13:44:262:54:057:349:36
7:40
+0:16
24M
24.00 mi13:51:523:01:317:347:26
7:26
-0:14
40K
24.85 mi13:58:153:07:547:346:23
7:28
+0:02
25.2M
25.20 mi14:01:013:10:407:342:46
8:01
+0:33
Finish
26.22 mi14:08:213:18:007:337:20
7:12
-0:49

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:12 /mi

Average Pace

7:33 /mi

Slowest Pace

8:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:11

95% of race

Time at Steady Pace

10:49

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:14:2124:007:4324:00
7:43
#11681
10K
6.21 mi11:37:2747:067:3523:06
7:26
#10746
15K
9.32 mi12:00:491:10:287:3423:22
7:31
#10588
20K
12.43 mi12:24:091:33:487:3323:20
7:31
#10258
Half
13.11 mi12:29:101:38:497:325:01
7:21
#10177
25K
15.53 mi12:47:211:57:007:3218:11
7:30
#9903
30K
18.64 mi13:10:562:20:357:3223:35
7:35
#9508
20M
20.00 mi13:21:152:30:547:3310:19
7:36
#9317
21M
21.00 mi13:29:182:38:577:348:03
8:03
#9179
35K
21.75 mi13:34:502:44:297:345:32
7:24
#9107
23M
23.00 mi13:44:262:54:057:349:36
7:40
#8990
24M
24.00 mi13:51:523:01:317:347:26
7:26
#8877
40K
24.85 mi13:58:153:07:547:346:23
7:28
#8775
25.2M
25.20 mi14:01:013:10:407:342:46
8:01
#8718
Finish
26.22 mi14:08:213:18:007:337:20
7:12
#8612
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi116812679267910357(Top 39%)2007(Top 18%)2007(Top 41%)
10K6.21 mi3.10 mi10746+9352197+4822197+4829937(Top 37%)1787(Top 16%)1787(Top 37%)
15K9.32 mi3.11 mi10588+1582114+832114+8310357(Top 39%)2007(Top 18%)2007(Top 41%)
20K12.43 mi3.11 mi10258+3301953+1611953+1619397(Top 35%)1644(Top 14%)1644(Top 34%)
Half13.11 mi0.68 mi10177+811922+311922+319083(Top 34%)1507(Top 13%)1507(Top 31%)
25K15.53 mi2.42 mi9903+2741811+1111811+1118800(Top 33%)1479(Top 13%)1479(Top 30%)
30K18.64 mi3.11 mi9508+3951690+1211690+1217892(Top 30%)1264(Top 11%)1264(Top 26%)
20M20.00 mi1.36 mi9317+1911642+481642+487470(Top 28%)1209(Top 11%)1209(Top 25%)
21M21.00 mi1.00 mi9179+1381611+311611+317703(Top 29%)1388(Top 12%)1388(Top 28%)
35K21.75 mi0.75 mi9107+721590+211590+217813(Top 29%)1421(Top 12%)1421(Top 29%)
23M23.00 mi1.25 mi8990+1171563+271563+277571(Top 28%)1404(Top 12%)1404(Top 29%)
24M24.00 mi1.00 mi8877+1131550+131550+137291(Top 27%)1400(Top 12%)1400(Top 29%)
40K24.85 mi0.85 mi8775+1021528+221528+226543(Top 25%)1179(Top 10%)1179(Top 24%)
25.2M25.20 mi0.35 mi8718+571510+181510+186732(Top 25%)1318(Top 12%)1318(Top 27%)
Finish26.22 mi1.02 mi8612+1061485+251485+256436(Top 24%)1214(Top 11%)1214(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10357

Females

2007

F18-39

2007

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9937

Females

1787

F18-39

1787

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10357

Females

2007

F18-39

2007

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9397

Females

1644

F18-39

1644

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9083

Females

1507

F18-39

1507

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

8800

Females

1479

F18-39

1479

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

7892

Females

1264

F18-39

1264

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7470

Females

1209

F18-39

1209

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7703

Females

1388

F18-39

1388

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7813

Females

1421

F18-39

1421

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7571

Females

1404

F18-39

1404

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7291

Females

1400

F18-39

1400

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6543

Females

1179

F18-39

1179

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6732

Females

1318

F18-39

1318

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6436

Females

1214

F18-39

1214

Passing Analysis

Category:
Athletes Passed
3409*
Passed By
340
Net Change
+3069
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11681
5K → 10K98550+935#11681#10746
10K → 15K269111+158#10746#10588
15K → 20K354*24+330#10588#10258
20K → Half876+81#10258#10177
Half → 25K294*20+274#10177#9903
25K → 30K413*18+395#9903#9508
30K → 20M20110+191#9508#9317
20M → 21M16022+138#9317#9179
21M → 35K819+72#9179#9107
35K → 23M13417+117#9107#8990
23M → 24M13118+113#8990#8877
24M → 40K11715+102#8877#8775
40K → 25.2M614+57#8775#8718
25.2M → Finish12216+106#8718#8612
TOTALS3409*340+3069

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing